Fountain-divider.



J. THOMPSON. FOUNTAIN DIVIDER.

ICATION FILED AP Patented Oct. 26, 1915.

ATTOR/I/EV ing from the curved end.

JAMES THOMPSON, OF- NEW YORK, N. Y.

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Specification of Letters Patent.

Patented @0113. 26, T915.

Application filed April 15, 1915. Serial No. 21,561.

To all whom it may concern:

Be it known that l[, JAMn's THOMPSON, a citizen of the United States,and a resident of the city of New York, borough of Manhattan, in thecounty and State of New York, have invented a new and ImprovedFountain-Divider, of which the following is a full, clear, and exactdescription.

My invention relates to dividers for printing-ink fountains. An objectof the invention is the provision of a simple, eflicient and inexpensivefountain divider whereby the ink fountain of a printing press may beseparated into sectionsor compartments in which various lands of ink maybe used without danger of the ink filtering from one compartment intothe other or from one portion of the fountain rollerto the adjacentportion separated by the divider. A further object of the inventionis'to provide a fountain, divider which will shape itself to thecurvature of the printing roller, no matter how irregular its surfacemay be.

With the above and other objects in view,

the nature of which will more fully appear as the description proceeds,the invention consists in the novel construction, combination andarrangement of parts as herein fully described, illustrated and claimed.

In the accompanying drawings, forming part of the application, similarcharacters of reference indicate corresponding parts in all the views.Figure 1 is a perspective view of an ink fountain provided with mydivider; Fig. 2 is a perspective view partly in section showing thedetails of construction; Fig. 3 is a cross section on line 33, Fig. 2;and Fig. 4 is a modified structure of my device.

Referring to the drawings, 5 represents a flexible member ofcompressible nature, such as rubber or rubber composition, the loweredge 6 of which is adapted to engage the bottom 7 of the fountain 8. Thearc uated concave edge 9 of the flexible member 5 will flt snuglyagainst the fountain roller 10, no matter how irregular its surface maybe. The flexible member 5 is preferably taper- To givebody to theflexible member 5 and to permit. the retention thereof in properposition in the fountain, the same is anchored to a wedge-shaped core 11located within the flexible member, so that there is a greater thicknessbetween the wearing edges of the flexible member. The core 11 -forms thereinforcement for the flexible member, and has an arm 12 in the shape ofa clamp whereby the same can be secured to the bottom 7 of the fountain(see F g. 1). The core has also .a central open- 1ng 13, as shown inFig. 2, to obtain a better anchoring of the flexible member on the core.

.In Fig. 4 a modified divider is shown, in wlnch case the flexiblemember of compressible nature 5 only borders the corell at the edgeswhere the contact is to take place, that is, at the curved edge 9 and atthe lower edge 6. The flexible member 5 in thls case will performexactly the same functions as has been described in regard to Figs. 1 to3.

Due to the fact that the contacting surfaces of the divider arecompressible, a perfect joint is obtained, thereby positively preventingany leaking from one compartmentv of the fountain into the other, andalso along the surface of the roller. The divider, due to itscompressibility and flexibility, is self-adjustable.

While I have described the principle of operation, together with thedevice which I now consider to be the best embodiment thereof, I desireto have it understood that the device shown is merely illustrative andthat such changes may be made as are within the scope of the appendedclaims.

I claim:

1. The combination with a printing-ink fountain, embodying a fountainroller, of a fountain divider having a flexible non metallic member ofcompressible nature adapted to engage the'bottom of the fountain andtheroller, a core for said flexible member having an arm whereby the samecan be secured to the fountain, substantially as and for the purpose setforth.

2. The combination of a printing-ink fountain, embodying a fountainroller, of a fountain divider comprising a flexible, nonmetallic memberadapted to contact with the bottom of the fountain and the roller, andan interior reinforcing member for said flexible member, saidreinforcing member having means for attaching the divide? to thefountain.

3. The combination with a printing-ink fountain, embodying a roller, ofa fountain divider comprising a flexible member adapted to contact withthe bottom of the fountain and the roller, and a core for saidflexibletmember havingan arm, including means core,

for securing the same to the fountain, said flexible member being moldedabout said said core having'a central opening for better anchoring theflexible member to the core.

4. The combination of a fountain, embodying a roller, of a dividercomprising a flexible member of rubber or rubber composition adapted tocontact with the bottom of the fountain and with the roller, a corewithin said flexible member reinforcing the same; andan arm'extendingfrom said core whereby the same can be secured to the bottom of thefountain; substantially as and for the purpose set forth.

printing-inka core within said member including means projecting out ofsaid member for securing said member to the fountain.

In testimony whereof I have signed my name to this two subscribingwitnesses.

JAMES THOMPSON.

Witnesses: JOHN ROBERTSON, DENNIS J. DALEY.

specification in the presence of.

